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[Codeforces] Round 476 (Div. 2) [Thanks, Telegram!] D. Single-use Stones|PSCodeforces|Problem Solving-Binary Search

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[Codeforces] Avito Code Challenge 2018 D. Bookshelves|PSCodeforces|Problem Solving-Dynamic Programming

Avito Code Challenge 2018 D. Bookshelves

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[Codeforces] Round 484 (Div. 2) D. Shark|PSCodeforces|Problem Solving-Union Find

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[CS Academy] Douchebag Parking|PSCS Academy|Problem Solving-Prefix Sum

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